XLENGTH
hline(ACS_HLINE, XLENGTH);
mvaddch(YBASE - 2, XBASE - 2 + XLENGTH, ACS_URCORNER);
hline(ACS_HLINE, XLENGTH);
mvaddch(YBASE + YDEPTH - 1, XBASE - 2 + XLENGTH, ACS_LRCORNER);
move(YBASE - 1, XBASE - 2 + XLENGTH);